Possessed said:
I want to have the shot of the falcon and the xwing on the planet, otherwise we won't know where the droids come from.

We don't see or know where they've come from in the original film either. It builds mystery. We know it has to have something to do with saving Han, but other than that we don't know where they are coming from, what exactly they are doing there or who else is around. Of course we've all seen the film tons of times so we know who the bounty hunter is and we immediately know it's Luke in the hood, but a first time viewer doesn't need to be let in on this until they are revealed.

The problem for me here is that we've already been with R2 on Dagobah, so it seems strange to see him somewhere else so quickly. Of course, we have no idea how long it's been between the scene on Dagobah, the Death Star and now Tatooine, but it seems strange to see the same character jumping around so much so early in the film. Other than that, I love the Dagobah scene moved up to where you have it.